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Updated: Jun 9, 2025

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A Standardized Obstacle Course for Assessment of Visual Function in Ultra Low Vision and Artificial Vision
Published on: February 11, 2014
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Advances and challenges in the development of visual prostheses
Eduardo Fernandez1,2,3,4, Jose Antonio Robles1
1Bioengineering Institute and Cátedra Bidons Egara, University Miguel Hernández, Elche, Spain.
Plos Biology
|October 24, 2024
Summary
Visual prostheses have advanced significantly over 20 years, from retinal implants to cortical approaches. This perspective examines the remaining challenges for these vision restoration technologies.
Area of Science:
- Biomedical Engineering
- Neuroscience
- Ophthalmology
Background:
- The field of visual prostheses has seen substantial progress over the last two decades.
- Developments range from initial retinal implant technologies to more recent cortical stimulation strategies.
Purpose of the Study:
- To review the advancements in visual prostheses over the past 20 years.
- To identify and discuss the key challenges hindering the clinical success of these vision restoration technologies.
Main Methods:
- This perspective synthesizes existing research and clinical data on visual prostheses.
- It analyzes the trajectory of technological development from retinal to cortical approaches.
Main Results:
- Significant progress has been made in developing functional visual prostheses.
- Several critical challenges remain in translating these technologies into widespread clinical applications.
Conclusions:
- Despite advancements, achieving ambitious clinical goals for visual prostheses requires addressing persistent technical and biological hurdles.
- Further innovation is needed to overcome current limitations in visual prostheses for effective vision restoration.

